Turbulent convection in stellar interiors : a numerical approach using time-implicit simulations

Séminaire IPAG de Maxime Viallet (U. of Exeter), jeudi 26 avril 2012 à 11h00, IPAG seminar room

Convection is a key process in stellar interiors. It is characterized by large Reynolds numbers, implying a highly turbulent regime. I will show how multidimensional hydrodynamical simulations allow us to get a physical insight of this complex phenonemon. The numerical results are obtained with a fully implicit method, and in the talk I will present the general framework and discuss the advantages of implicit methods in tackling stellar hydrodynamical problems.